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CCAO-F exam prep The seven blueprint domains

Domain 3 · Product and Model Selection

Twelve percent, the domain with the most names to actually know, and where the guide's second published sample item lives

· Part 2 · The seven blueprint domains · 2 min read

Weight: 12% of the exam.

This domain differs from its neighbours in having some genuine recall in it — the names of the features and the model tiers. The rest is still judgment.

The objectives, as the guide states them

"Select appropriate Claude product features (Projects, research mode, chat, artifacts)"

"Differentiate between Claude model types (Haiku, Sonnet, Opus)"

"Align model selection with task requirements (cost, speed, quality)"

"Understand and manage context limitations and memory considerations (when to restart, summarize, or persist)"

The three axes it decides on

The third objective names them itself.

  cost     what a call costs
  speed    how long you wait
  quality  how deep the reasoning goes

These three pull against each other, and the exam measures whether you can pick a balance — not whether you can remember which model is biggest.

The second official sample item

Section 8 sets up a situation: a high volume of short customer-reply drafts is needed, where speed and cost matter more than deep reasoning. Which choice fits?

The answer is the faster, lower-cost model suited to straightforward, high-volume work, and the rationale reads

"Aligning model selection with task requirements means matching a faster, lower-cost model to straightforward, high-volume work, reserving the most capable model for complex reasoning. Always using the top model (A) wastes the cost and latency budget"

"Always using the top model wastes the cost and latency budget" is this domain's central trap. An option telling you to reach for the most capable model every time is the wrong answer, not the safe one.

Note also how the guide dismisses the other two.

"disabling features (C) or switching platforms (D) does not address the trade-off"

Both are wrong because they do not answer the question asked, not because they are bad things to do. That pattern repeats throughout scenario items.

Context and memory is the least-prepared objective

The fourth objective puts its own answers in the brackets.

  restart     begin a new conversation
  summarize   condense what has been said
  persist     keep it across sessions

Those three answer different questions — restart when the subject has changed, summarise when it is the same work grown long, persist when it has to survive to next time. That last one leads straight into domain 5 and the configuration of Projects.

When it lies

"Pick the most capable model to be safe." The guide says outright that this wastes the cost and latency budget, and marks it wrong in its own sample.

"When the context fills up, start again." The objective offers three moves, not one. Starting again throws away context you may still need.

"You have to memorise each model's specifications." The verbs are differentiate and align, not recall. The exam asks which one suits which work.

References

Official documents

  • CCAO-F Exam Guide Section 6 domain 3, Section 8 for the second sample and its rationale

Elsewhere in this course

Judgment, not recall

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